In one way or another, nearly each shape of energy we use originates as energy from the sun. Solar energy directly powers photovoltaic cells and thermal collectors. Indirectly, we get power from plants grown by the sun, oceans heated by the sun, and Earth’s weather systems sustained by the sun. Even the energy stored in fossil fuels originated ...
The Thames & Kosmos Fuel Cell Car & Experiment Kit offers a playful introduction to one of the much significant technologies of the early 21st Century. Together with this kit you can build a model car this actually runs on water! First, add water and watch it separate into hydrogen and oxygen. Then, use those stored gases to ...